Data Scientist - Experimentation Framework

We are supporting a leading eCommerce business in the search for a Senior Experimentation Data Scientist to deliver high-impact experimentation across logistics and operational initiatives .

This role is explicitly not product-focused and will centre on experimentation relating to promotions, operational efficiency, and logistics performance.

This is a fast-moving engagement with tight timelines, requiring someone who can hit the ground running and operate autonomously within a squad-based delivery model., * Design and execute experimentation frameworks focused on logistics and operational use cases

• Lead A/B testing and controlled experiments to evaluate promotional and operational changes
• Ensure analytical robustness through sense-checking data, assumptions, and outputs
• Work closely with engineers, analysts, and operational stakeholders within a squad environment
• Translate experimental outcomes into clear, actionable recommendations for the business
• Operate independently while maintaining strong collaboration across technical teams

• Advanced SQL (including joins, validation logic, and data interrogation)
• Strong Python for analysis and experimentation workflows
• Experience working with Google BigQuery or comparable cloud data platforms

Experimentation Expertise

• Proven experience designing and building experimentation frameworks
• Strong grounding in experimental design, statistical validity, and bias mitigation
• Confident explaining experimental approaches verbally, not just via documentation

Ideal Contractor Profile

• Senior-level experimentation data scientist with strong commercial awareness
• Comfortable working at pace in short, delivery-focused contracts
• Able to work independently with minimal oversight
• Confident partnering with highly technical teams
• Well-prepared, pragmatic, and delivery-oriented
• Comfortable operating within tight timelines and changing priorities

Desired Skills and Experience

Skills

Experimentation Design & A/B Testing

Advanced SQL (joins, validation, optimisation)

Python for Data Analysis

Google BigQuery

Statistical Analysis & Inference

Data Quality & Sense Checking

Operational & Logistics Analytics

Stakeholder Management

Agile / Squad-Based Delivery

Experience

Senior-level experimentation data scientist within eCommerce or operational environments

Designing and building experimentation frameworks end to end

Delivering logistics or operations-focused experiments (non-product)

Working independently on short, high-impact contracts

Partnering with highly technical teams under tight timelines, If you have experience building experimentation frameworks and thrive in dynamic, high-visibility roles, we'd love to hear from you.